4. Preparing the assembly

Relevant for:

MMU3

Last updated 2 months ago

Difficulty

Easy

Steps

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Step 1 Attaching the MMU unit (part 1)

⬢The MMU3 unit should be placed onto the top part of the printer's frame.

⬢Place the MMU3 unit onto the frame.

Attach it just by the top hooks.

⬢Look from behind, there are "clamps", which will be used to lock the unit to the frame in the next step.

Step 2 Attaching the MMU unit (part 2)

⬢Press the back part of the MMU3 unit downwards slightly, until the clamps lock to the frame.

⬢Check that both bottom clamps on the unit are fully engaged.

If you need to remove the unit from the frame, simply lift the back part up to disengage the clamps.

Step 3 MMU-to-Extruder PTFE tube parts preparation

⬢For the following steps, please prepare:

⬢360x2.5mm PTFE tube (1x)

Step 4 MMU-to-Extruder PTFE tube

⬢Attach the PTFE tube onto the printer by inserting it into the fittings. One end goes onto the selector. The other goes onto the extruder.

⬢Tighten the fittings up using the Uniwrench, if necessary.

Step 5 Spoolholders setup

⬢The Buffer and spools setup in the picture is the one we will be trying to achieve. Arrange the spool holders and the buffer as seen in the picture.

⬢Hook up the "printer holder" part on the buffer to the extrusion on the printer.

⬢The PTFE tubes should go from the spoolholders to the buffer. Then, from the buffer to the back of the MMU.

Note the spool holder positioning. It is important that filament has as straight path as possible and that nothing interferes. PTFE tubes should not be bent too much. Otherwise, the filaments will jam.

Step 6 Spoolholder-to-Buffer PTFE tube

⬢Connect the PTFE tubes from the MMU unit to the BOTTOM row of collets on the buffer, ensuring you match the numbering on both the buffer and the MMU unit.

⬢Attach each end of the PTFE tube from the Buffer to the PTFE holder on each Spool holder.

Make sure each spool holder is hooked up to the corresponding filament position number. (marked 1 to 5 on the MMU unit and the buffer.)

The MMU3 for MK4S necessitates the use of the latest version of the buffer components. If you're using an older version, it's essential to rebuild the device using the most recent version available.

⬢Now it's time to get closer to printing. Let's move to the next chapter.

4. Preparing the assembly

4. Preparing the assembly

Step 1 Attaching the MMU unit (part 1)

Step 2 Attaching the MMU unit (part 2)

Step 3 MMU-to-Extruder PTFE tube parts preparation

Step 4 MMU-to-Extruder PTFE tube

Step 5 Spoolholders setup

Step 6 Spoolholder-to-Buffer PTFE tube

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